Hope you don't mind an English intrusion. My six weeks of Rosetta Stone Dutch haven't prepared me to say much more than "This is my sandwich" and "His sweater is green." (BTW, brodje is fun for my American tongue to pronounce. Groen, not so much. I hope I never have to say the grass is green or talk about a big grey anything. The "gr" sound just about kills me.)

Anyway, I'll be spending six weeks in Amersfoort this summer, and I was hoping somebody might know whether there are any public-accessible ergs in the area.